975525251 has 2 divisors, whose sum is σ = 975525252. Its totient is φ = 975525250.

The previous prime is 975525247. The next prime is 975525281. The reversal of 975525251 is 152525579.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (152525579) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 975525251 - 2² = 975525247 is a prime.

It is a super-2 number, since 2×975525251² = 1903299030677226002, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 975525199 and 975525208.

It is not a weakly prime, because it can be changed into another prime (975525211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 487762625 + 487762626.

It is an arithmetic number, because the mean of its divisors is an integer number (487762626).

Almost surely, 2^975525251 is an apocalyptic number.

975525251 is a deficient number, since it is larger than the sum of its proper divisors (1).

975525251 is an equidigital number, since it uses as much as digits as its factorization.

975525251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 157500, while the sum is 41.

The square root of 975525251 is about 31233.3996068311. The cubic root of 975525251 is about 991.7742732779.

The spelling of 975525251 in words is "nine hundred seventy-five million, five hundred twenty-five thousand, two hundred fifty-one".